Short-Length and High-Aperture-Efficiency Horn Antenna Using Low-Loss Bulk Anisotropic Metamaterial

被引：27

作者：

He, Yingran ^{[1
]}

Ding, Ning ^{[1
]}

Zhang, Lingfei ^{[1
]}

Zhang, Wenjing ^{[1
]}

Du, Biao ^{[1
]}

机构：

[1] China Elect Technol Grp Corp, Res Inst 54, Shijiazhuang 050081, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

关键词：

Anisotropy; aperture efficiency; horn antenna; metamaterial; short length; BROAD-BAND; REFRACTION; LENS; INDEX;

D O I：

10.1109/LAWP.2015.2416005

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An empty horn antenna is filled with a bulk anisotropic metamaterial to enhance its gain and aperture efficiency. Radiation patterns in both the E-plane and the H-plane are improved owing to the anisotropic permittivity and the anisotropic permeability. Aperture efficiency over 70% is achieved despite of its short longitudinal length similar to lambda(0). Insertion loss below 0.18 dB and energy reflection below -20 dB are obtained, which are quite small compared to most metamaterial-based antennas. The metamaterial-filled horn is fabricated and tested, and the measured results agree very well with the simulated results.

引用

页码：1642 / 1645

页数：4

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